Cyperus unioloides

Explore the data for this taxon in the portal

Family Cyperaceae

Taxonomy: Cyperus unioloides R.Br.

Synonyms: 12 (APC 2026-07-30)

Cyperus angulatus Nees (taxonomic synonym)
Cyperus bromoides Humb. ex Link (doubtful taxonomic synonym)
Cyperus luteolus Boeckeler (taxonomic synonym)
Cyperus sp. Bradshaw (C.R.Michell 2091) (taxonomic synonym)
Cyperus unioloides R.Br. f. unioloides (nomenclatural synonym)
Cyperus unioloides f. insularis (Domin) Kük. (taxonomic synonym)
Pycreus angulatus (Nees) Nees (taxonomic synonym)
Pycreus unioloides (R.Br.) Urb. (nomenclatural synonym)
Pycreus unioloides (R.Br.) Urb. var. unioloides (nomenclatural synonym)
Pycreus unioloides var. angulatus (Nees) Domin (taxonomic synonym)
Pycreus unioloides var. insularis Domin (taxonomic synonym)
Pycreus unioloides var. typicus Domin (nomenclatural synonym)

Misapplied names: 1 (APC 2026-07-30)

Cyperus lanceus Thunb. (misapplied)

Distribution (APC): WA, NT, Qld, NSW

Profiles: APC, Flora of Australia, ALA, iNaturalist, NSW Flora, NT eFlora, Florabase, ATRP

Traits

Top source datasets: Kew_2019_1 (1), Metcalfe_2020_1 (2), NHNSW_2014_2 (2), NHNSW_2022 (4), NHNSW_2023 (9), NTH_2022 (4), NTH_2023 (1), Sjostrom_2006 (4), Wenk_2022 (2), Wenk_2023 (1). See below for a full list of sources.
Summary: AusTraits contains 18 traits from 30 records in 10 datasets.

Traits by category (click to expand). For categorical traits, the values are listed. For numerical traits, the mean and range are shown.

flower morphology

flower_colour (categorical): red_brown (1); yellow_orange (1) [sources: NHNSW_2014_2]
sex_type (categorical): hermaphrodite (2) [sources: Metcalfe_2020_1; Sjostrom_2006]

fruit morphology

fruit_length (numerical): 1.25 mm (1-1.5 mm) [sources: NHNSW_2023]
fruit_width (numerical): 0.9 mm (0.8-1 mm) [sources: NHNSW_2023]
fruit_type (categorical): nut (2) [sources: NHNSW_2023; Sjostrom_2006]
fruit_fleshiness (categorical): dry (1) [sources: Sjostrom_2006]
fruit_dehiscence (categorical): indehiscent (1) [sources: Sjostrom_2006]
fruit_colour (categorical): black (1); grey (1) [sources: NHNSW_2023]

leaf morphology

leaf_width (numerical): 3 mm (2-4 mm) [sources: NHNSW_2023]

life history

plant_growth_form (categorical): graminoid (3); herb (1) [sources: NHNSW_2022; NTH_2022; Wenk_2022]
life_history (categorical): perennial (3) [sources: NHNSW_2022; NTH_2022; Wenk_2023]
woodiness_detailed (categorical): herbaceous (3) [sources: NHNSW_2022; NTH_2022; Wenk_2022]
stem_growth_habit (categorical): erect (1); rhizomatous (1) [sources: NHNSW_2022; NTH_2022]
flowering_time (categorical): yynnnnnnyyyy (1) [sources: NHNSW_2014_2]
vegetative_reproduction_ability (categorical): not_vegetative (1) [sources: Metcalfe_2020_1]
storage_organ (categorical): rhizome (1) [sources: NHNSW_2023]

seed morphology

seed_dry_mass (numerical): 0.2 mg (0.2-0.2 mg) [sources: Kew_2019_1]

whole plant morphology

plant_height (numerical): 1 m (1-1 m) [sources: NTH_2023]

Sources

dataset_id	n_traits	n_records	reference
NHNSW_2023	6	9	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on 6 May, 2022.. 2023. url: https://plantnet.rbgsyd.nsw.gov.au/.
NHNSW_2022	4	4	N. H. of New South Wales. The Plant Information Network System of The Royal Botanic Gardens and Domain Trust Version 2.0.. accessed on 6 May, 2022.. 2022. url: https://plantnet.rbgsyd.nsw.gov.au/.
NTH_2022	4	4	D. of Land Resource Management and N. T. of Australia. Northern Territory Flora Online. accessed on 6 May, 2022.. 2022. url: http://eflora.nt.gov.au/.
Sjostrom_2006	4	4	A. Sjöström and C. L. Gross. “Life-history characters and phylogeny are correlated with extinction risk in the Australian angiosperms”. Journal of Biogeography 33.2 (2006), pp. 271-290. doi: 10.1111/j.1365-2699.2005.01393.x.
Metcalfe_2020_1	2	2	D. Metcalfe. “Unpublished data: Database of Cyperaceae traits, CSIRO”. 2020.
NHNSW_2014_2	2	2	Royal Botanic Gardens Sydney. PLantNET: NSW flora online. 2014. url: http://plantnet.rbgsyd.nsw.gov.au/.
Wenk_2022	2	2	E. Wenk. “Unpublished data: Australian plant growth forms dataset”. 2022.
Kew_2019_1	1	1	Royal Botanic Gardens Kew. Seed Information Database (SID) and Seed Bank Database. 2019. url: http://data.kew.org/sid/.
NTH_2023	1	1	D. of Land Resource Management and N. T. of Australia. Northern Territory Flora Online. accessed on 6 May, 2022.. 2022. url: http://eflora.nt.gov.au/.
Wenk_2023	1	1	E. Wenk. “Unpublished data: Australian plant life history dataset, University of New South Wales, Sydney”. 2023.